Double Seam System


We are proud to be the only one roll former in Thailand to manufacture and install

boltless metal roofing with the Double Seam System. With many years of experience and know how, our Double Seam System has become one of the most trusted roofing systems in Thailand.

How it works.

It is one of a kind technology for roofing seaming systems. It has been tested and passed for ZERO leakage according to ASTM E1646 and wind uplift according to FM Global. 

Electrical Seamer

Using Electrical Seamer to seam along the flank to complete the installation process. 

Long Span Connector

We have our own special design of roofing connectors to allow thermal expansion of metal sheet roofing at long span.


It is designed to use in certain roofing areas by supported engineering calculation.